SteveB wrote:

How do you get rid of fruit flies once they get inside?

Simple... clean your house, dump your trash properly, bathe every day.
Mostly fruit flies don't "get" inside, you bring them in with
produce... fruit fly larva is already in most produce you buy... wash
produce as soon as you bring it home and as much as possible
refrigerate and/or place in closed paper bags... and bathe often,
really, fruit flies are very strongly attracted to a dirty crotch
because fruit flies are incapable of ascertaining if food is going in
or coming out... insist your wife and daughter bathe every day too...
female crotches are more of an attractant if you get my drift.